The limitation of literature actually is still in discussion, on the other hand, it is fact that literature is the work produced by the cultural observer using language as his means.In addition to the limitation of literature, all of phenomena existing in certain society ....etc.
Sociologically, literatur is a refletion of culture environment and as a dialectical text between the author and his social condition.Due to this fact, to understand and interpret literary works, we not only need to know the literary theory but also the external problems....etc.
Intertextuality concept at the beginning is from structuralism.This school is then developed by Julia Kristeva.She said that every text is a mozaik, quotation, adoption, and transformation from other text.